HYUNDAI IONIQ PREMIUM HEV S-A (2018)
Running costs, reliability data, and common problems from 54 real MOT tests.
Annual Cost
£1,587
£132/month
MOT Pass Rate
100%
Excellent
Road Tax
£195
Flat rate/year
Insurance
Grp 12-25
1580cc Hybrid
Great Choice
100% pass rate, £1587/year to run. 18 points above average.
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Annual Running Costs
~42 mpg
Flat rate (post-2017)
Low estimate due to excellent reliability
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT data. Insurance not included.
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Reliability Verdict
Excellent reliability. Very few MOT failures. That's 18 points above the national average of 82%. It also outperforms the HYUNDAI brand average of 83%.
At 8 years old, 100% of HYUNDAI IONIQ PREMIUM HEV S-As from 2018 passed their MOT first time in 2026. That's based on 54 tests across the UK. The average mileage at this age is 165,086 miles.
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How Does It Compare?
Mileage Analysis
165,086
Average miles
59,200
Expected for age
The average 2018 HYUNDAI IONIQ PREMIUM HEV S-A has 165,086 miles on the clock, which is well above the expected 59,200 miles for a 8-year-old car. Check service history carefully, as high-mileage cars need consistent maintenance to stay reliable.
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About the 2018 HYUNDAI IONIQ PREMIUM HEV S-A
The 2018 HYUNDAI IONIQ PREMIUM HEV S-A is a small family car with a 1580cc hybrid engine. 54 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. It ranks in the top 2% of all 2018 cars for reliability.
With an average of 165,086 miles at 8 years old, HYUNDAI IONIQ PREMIUM HEV S-A owners cover more miles than the average driver. High-mileage examples should be checked carefully for wear on suspension, brakes, and drivetrain components.
2018 HYUNDAI IONIQ PREMIUM HEV S-A Fuel Costs
The 1580cc hybrid engine offers a reasonable balance between performance and economy. Expect around 42 mpg in mixed driving, which works out to roughly £1,137 per year at current hybrid prices of 142p per litre (based on 7,400 miles per year). As a hybrid, real-world fuel costs will vary significantly depending on how much electric-only driving you do.
What does it cost to own a 2018 HYUNDAI IONIQ PREMIUM HEV S-A?
Total estimated annual running cost is £1,587 (£132/month), broken down as £1137 fuel, £195 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 100% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Buying a Used 2018 HYUNDAI IONIQ PREMIUM HEV S-A
At 8 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. Note: with only 54 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2018 HYUNDAI IONIQ PREMIUM HEV S-A's fuel type, age, and engine size, these are the most likely problem areas to check.
Hybrid Battery Health
Watch outAfter 8 years, hybrid battery capacity may have reduced. A full replacement costs £2,000-£4,000, though reconditioning is cheaper at £500-£1,500.
Inverter and Power Electronics
Medium riskThe inverter converts DC to AC for the electric motor. Failures are expensive (£1,500+) but relatively rare. Listen for unusual buzzing sounds.
Regenerative Braking
Medium riskBrake discs can corrode from reduced use (the electric motor handles most braking). Surface rust is normal but deep pitting needs attention.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
Clutch Wear
Watch outWith an average of 165k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
Engine Mounts
Medium riskWorn engine mounts cause excessive vibration and movement. Replacement costs £150-£400 per mount. Check for vibration at idle with the bonnet open.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2018 HYUNDAI IONIQ PREMIUM HEV S-A stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| HYUNDAI IONIQ PREMIUM HEV S-A(2018) | 100% | £1137 | £195 | Grp 12-25 | £1587 |
| MERCEDES C(2017) | 89% | £1327 | £190 | Grp 18-32 | £1922+£335 |
| TOYOTA YARIS(2018) | 91% | £1137 | £190 | Grp 8-20 | £1582-£5 |
| MINI COOPER S(2019) | 92% | £1137 | £190 | Grp 12-25 | £1582-£5 |
| LAND ROVER RANGE ROVER SPORT(2019) | 94% | £1327 | £190 | Grp 18-32 | £1772+£185 |
Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.
Related Hyundai Models
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MERCEDES C
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2018 · 1349cc Hybrid
MINI COOPER S
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